Properties of the Number 81704

Eighty-One Thousand Seven Hundred Four

Basics

Value: 81703 → 81704 → 81705

Parity: even

Prime: No

Previous Prime: 81703

Next Prime: 81707

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 7 × 1459

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 1459, 2918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111100101000

Octal: 237450

Duodecimal: 3B348

Hexadecimal: 13f28

Square: 6675543616

Square Root: 285.83911558777254

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Fourier coefficients of a modular form studied by Koike. A341304

Let f(0)=1, f(1)=t, f(n+1) = (f(n)²+tⁿ)/f(n-1). f(t) is a polynomial with integer coefficients. Then a(n) = f(n) when t=3. A81704